Enable both c11 atomic and non c11 atomic lock-free stack for aarch64.
Signed-off-by: Phil Yang <phil.y...@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com>
Tested-by: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com>
---
doc/guides/prog_guide/env_abstraction_layer.rst | 4 ++--
doc/guides/rel_notes/release_19_08.rst | 3 +++
lib/librte_stack/rte_stack_lf_c11.h | 4 ++--
lib/librte_stack/rte_stack_lf_generic.h | 4 ++--
4 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/doc/guides/prog_guide/env_abstraction_layer.rst
b/doc/guides/prog_guide/env_abstraction_layer.rst
index f15bcd9..d569f95 100644
--- a/doc/guides/prog_guide/env_abstraction_layer.rst
+++ b/doc/guides/prog_guide/env_abstraction_layer.rst
@@ -592,8 +592,8 @@ Known Issues
Alternatively, applications can use the lock-free stack mempool handler. When
considering this handler, note that:
- - It is currently limited to the x86_64 platform, because it uses an
- instruction (16-byte compare-and-swap) that is not yet available on other
+ - It is currently limited to the aarch64 and x86_64 platforms, because it
uses
+ an instruction (16-byte compare-and-swap) that is not yet available on
other
platforms.
- It has worse average-case performance than the non-preemptive rte_ring, but
software caching (e.g. the mempool cache) can mitigate this by reducing the
diff --git a/doc/guides/rel_notes/release_19_08.rst
b/doc/guides/rel_notes/release_19_08.rst
index 3da2667..e2e00b9 100644
--- a/doc/guides/rel_notes/release_19_08.rst
+++ b/doc/guides/rel_notes/release_19_08.rst
@@ -99,6 +99,9 @@ New Features
Updated ``librte_telemetry`` to fetch the global metrics from the
``librte_metrics`` library.
+* **Added Lock-free Stack for aarch64.**
+
+ The lock-free stack implementation is enabled for aarch64 platforms.
Removed Items
-------------
diff --git a/lib/librte_stack/rte_stack_lf_c11.h
b/lib/librte_stack/rte_stack_lf_c11.h
index 3d677ae..67c21fd 100644
--- a/lib/librte_stack/rte_stack_lf_c11.h
+++ b/lib/librte_stack/rte_stack_lf_c11.h
@@ -36,7 +36,7 @@ __rte_stack_lf_push_elems(struct rte_stack_lf_list *list,
struct rte_stack_lf_elem *last,
unsigned int num)
{
-#ifndef RTE_ARCH_X86_64
+#if !defined(RTE_ARCH_X86_64) && !defined(RTE_ARCH_ARM64)
RTE_SET_USED(first);
RTE_SET_USED(last);
RTE_SET_USED(list);
@@ -88,7 +88,7 @@ __rte_stack_lf_pop_elems(struct rte_stack_lf_list *list,
void **obj_table,
struct rte_stack_lf_elem **last)
{
-#ifndef RTE_ARCH_X86_64
+#if !defined(RTE_ARCH_X86_64) && !defined(RTE_ARCH_ARM64)
RTE_SET_USED(obj_table);
RTE_SET_USED(last);
RTE_SET_USED(list);
diff --git a/lib/librte_stack/rte_stack_lf_generic.h
b/lib/librte_stack/rte_stack_lf_generic.h
index 3182151..488fd9f 100644
--- a/lib/librte_stack/rte_stack_lf_generic.h
+++ b/lib/librte_stack/rte_stack_lf_generic.h
@@ -36,7 +36,7 @@ __rte_stack_lf_push_elems(struct rte_stack_lf_list *list,
struct rte_stack_lf_elem *last,
unsigned int num)
{
-#ifndef RTE_ARCH_X86_64
+#if !defined(RTE_ARCH_X86_64) && !defined(RTE_ARCH_ARM64)
RTE_SET_USED(first);
RTE_SET_USED(last);
RTE_SET_USED(list);
@@ -84,7 +84,7 @@ __rte_stack_lf_pop_elems(struct rte_stack_lf_list *list,
void **obj_table,
struct rte_stack_lf_elem **last)
{
-#ifndef RTE_ARCH_X86_64
+#if !defined(RTE_ARCH_X86_64) && !defined(RTE_ARCH_ARM64)
RTE_SET_USED(obj_table);
RTE_SET_USED(last);
RTE_SET_USED(list);
--
2.7.4
